Scientists launch Decade-Long study to unlock secrets of stem cell transplants
NCT ID NCT03000244
First seen Jun 27, 2026 · Last updated Sep 01, 2026 · Updated 20 times
Summary
This study follows people who have had a stem cell transplant (and their donors) for years after the procedure. Researchers want to understand long-term health effects, how the transplanted cells change, and how to improve the body's ability to fight cancer. Participants will have yearly check-ups, blood tests, and answer health questions.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this study could reveal better ways to manage long-term health after stem cell transplants and improve how well the immune system fights cancer.
- What could go wrong
- This is an observational study, not a treatment trial, so it won't directly test a new therapy. Results may take years and might not lead to immediate changes in care.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 2,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Apr 2017
- Expected to finish
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Aug 2050
An estimate. End dates often move.
- Lead sponsor
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A government research agency
The lead sponsor is the US National Institutes of Health.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients who have received an allogeneic stem cell transplant, cellular therapy, or gene therapy as well as donors of stem cells who are related to the patients who are study participants. Parents of minor recipients may also be enrolled to complete surveys. Participants can be from any community or co-enrolled on another NIH protocol.
- Ages
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4 to 120 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
* INCLUSION CRITERIA FOR PATIENT SUBJECTS: * Individuals who underwent HCT or received cellular or gene therapy for any indication (malignant or non-malignant) and are surviving one year or more from the date of therapy * Age \>= 4 years * Ability of individual or individual s Legally Authorized Representative (LAR) to understand and the willingness to sign a written informed consent document * Individuals will need to have a primary physician within the US (primary care, oncologist, hematologist, etc.) that will provide continued comprehensive care for the duration of participation in the study. PI may allow for established medical providers to be located outside of the US. EXCLUSION CRITERIA FOR PATIENT SUBJECTS: -Individuals with active disease relapse or new hematologic malignancy including post-transplant lymphoproliferative disorder (PTLD) are excluded from protocol enrollment. INCLUSION CRITERIA FOR DONOR SUBJECTS: * Related stem cell donors of patients meeting the above criteria as a donor of hematopoietic progenitor and stem cells or leukocytes * Age \>= 4years * Ability of patient or patient s Legally Authorized Representative (LAR) to understand and the willingness to sign a written informed consent document INCLUSION CRITERIA FOR PARENTS COMPLETING SURVEYS: * Parents/guardians of minors enrolled on the study who have undergone HCT * Willingness to complete surveys about the minor that underwent HCT
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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National Institutes of Health Clinical Center
RECRUITINGBethesda, Maryland, 20892, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can a bone drug plus immune signal stop blood cancer from returning after transplant?
- Can tailored drug dosing make stem cell transplants safer?
- A phone call from a survivor: could peer support calm transplant anxiety?
- Can gut bacteria help rebuild immunity after stem cell transplants?
- Can a safer dose of an old drug shield vulnerable children from deadly fungal infections?
- Could virtual reality help patients recover faster from cell therapy?